Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 28.SE, Problem 22AP
Human and horse insulin both have two polypeptide chains, with one chain containing 21 amino acids and the other containing 30 amino acids. They differ in primary structure at two places. At position 9 in one chain, human insulin has Ser and horse insulin has Gly; at position 30 in the other chain, human insulin has Thr and horse insulin has Ala. How must the DNA for the two insulins differ?
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Chapter 28 Solutions
Organic Chemistry
Ch. 28.1 - Draw the full structure of the DNA dinucleotide...Ch. 28.1 - Draw the full structure of the RNA dinucleotide...Ch. 28.2 - What sequence of bases on one strand of DNA is...Ch. 28.4 - Show how uracil can form strong hydrogen bonds to...Ch. 28.4 - What RNA base sequence is complementary to the...Ch. 28.4 - From what DNA base sequence was the following RNA...Ch. 28.5 - List codon sequences for the following amino...Ch. 28.5 - List anticodon sequences on the tRNAs carrying the...Ch. 28.5 - What amino acid sequence is coded by the following...Ch. 28.5 - What is the base sequence in the original DNA...
Ch. 28.7 - Prob. 11PCh. 28.7 - Prob. 12PCh. 28.SE - Identify the following bases, and tell whether...Ch. 28.SE - Identify the following nucleotide, and tell how it...Ch. 28.SE - Amine bases in nucleic acids can react with...Ch. 28.SE - The final step in DNA synthesis is deprotection by...Ch. 28.SE - The final step in the metabolic degradation of...Ch. 28.SE - One of the steps in the biosynthesis of a...Ch. 28.SE - One of the steps in the metabolic degradation of...Ch. 28.SE - One of the steps in the biosynthesis of uridine...Ch. 28.SE - Human brain natriuretic peptide (BNP) is a small...Ch. 28.SE - Human and horse insulin both have two polypeptide...Ch. 28.SE - The DNA of sea urchins contains about 32% A. What...Ch. 28.SE - The codon UAA stops protein synthesis. Why does...Ch. 28.SE - Which of the following base sequences would most...Ch. 28.SE - For what amino acids do the following...Ch. 28.SE - Prob. 27APCh. 28.SE - Prob. 28APCh. 28.SE - Draw the complete structure of the ribonucleotide...Ch. 28.SE - Draw the complete structure of the...Ch. 28.SE - Give an mRNA sequence that will code for the...Ch. 28.SE - Give an mRNA sequence that will code for the...Ch. 28.SE - What amino acid sequence is coded for by the...Ch. 28.SE - What amino acid sequence is coded for by the...Ch. 28.SE - Prob. 35APCh. 28.SE - Show the steps involved in a laboratory synthesis...Ch. 28.SE - Draw the structure of cyclic adenosine...Ch. 28.SE - Prob. 38AP
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- Human brain natriuretic peptide (BNP) is a small peptide of 32 amino acids used in the treatment of congestive heart failure. How many nitrogen bases are present in the DNA that codes for BNP?arrow_forwardIs the trinucleotide in Problem 22-31 found only in DNA, found only in RNA, or found in both DNA and RNA? Explain the basis for your answer.arrow_forwardIf a codon consists of two nucleotides, how many codons would be possible? Would this be a workable code for the purpose of protein synthesis?arrow_forward
- Which of the following statements about the genetic code are true and which are false? Correct each false statement. a.Each codon is composed of four bases. b.Some amino acids are represented by more than one carbon. c.All codons represent an amino acid. d.Each living species is thought to have its own unique genetic code. e.The codon AUG at the beginning of a sequence is a signal for protein synthesis to begin at that codon. f.It is not known if the code contains stop signals for protein synthesis.arrow_forwardDo the DNA sequences ATGC and CGTA represent the same compound? Explain.arrow_forwardList the postulates of the Watson-Crick model of DNA secondary structure.arrow_forward
- If a codon consists of four nucleotides, how many codons would be possible? Would this be workable as an amino-acid code?arrow_forwardThe base content of a particular DNA molecule is 36% thymine. What is the percentage of each of the following bases in the molecule? a. Adenine b. Guanine c. Cytosinearrow_forward
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